The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2010
Filed:
Sep. 20, 2007
Moises Cases, Austin, TX (US);
Byron L. Krauter, Round Rock, TX (US);
Bhyrav M. Mutnury, Austin, TX (US);
Nam H. Pham, Round Rock, TX (US);
Moises Cases, Austin, TX (US);
Byron L. Krauter, Round Rock, TX (US);
Bhyrav M. Mutnury, Austin, TX (US);
Nam H. Pham, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In electronic devices with signal traces positioned between a ground layer and a voltage reference layer, systems and methods are provided for connecting a hot pluggable device to the electronic device in a manner that diminishes signal degradation due to parasitic effects. The first device has a second reference layer near the connector that connects to a second device voltage reference layer maintained at a given voltage level across the connector. In the first device near the connector the signal trace is positioned in between a ground layer of the first device and the second reference layer which is maintained at a given voltage by a voltage regulator of the second device. The signal return current travels past the second reference layer to a first reference layer of the first device which is maintained by the first device's voltage regulator through AC decoupling capacitors minimizing the current return path discontinuity.